Electrically-energized heater.



0. B. BRUSH.

ELEOTRIGALLY ENEBGIZED HEATER.

APPLICATION FILED SEPT. 24, 1913.

ii 1 g4 849, Patented. Jan. 12, 1915.

anaemic z UNITED STATES PATENT OFFICE.

OSCAR B. BRUSH, OF JOLIET, ILLINOIS.

ELECTRICALLY-ENERGIZED HEATER.

Application filed September 24, 1913.

To all whom it may concern Be it known that I, OSCAR B. BRUSH, a citizen of the United States of America, residing at Joliet, in the county of Will and State of Illinois, have invented new and useful Improvements in Electrically-Energized Heaters, of which the following is a specification.

This invention relates to improvements in electrically energized heating devices and has particular application to a heater for eliminating the static electricity from the paper on printing presses.

In carrying out the present invention, it is my purpose to improve and simplify the general construction of electrically energized heaters and to provide a heater which will operate efii ciently and effectively for its intended purpose. Furthermore, I aim to provide a heater whereby hand jogging will be reduced to a minimum and which will embrace the desired features of simplicity, efiiciency and durability coupled with cheapness of cost in manufacture and installation.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter set forth in and falling within the scope of the claims.

In the accompanying drawings; Figure 1 is a longitudinal sectional view through a heater constructed in accordance with the present invention. Fig. 2 is a cross sectional view through the same.

Referring now to the accompanying drawings in detail, A designates a heater which, in the present instance, is electrically energized and comprises a core 1 constructed of any suitable or desired material and preferably cylindrical in cross section. The outer surface of the core is formed with a spiral groove 2 extending the full length thereof, while a bore 3 is formed longitudinally of the core. Wrapped about the core 1 is a coil of wire 4 having the convolutions thereof lying within the groove 2 and capable of conducting an electric current, while arranged within the bore 3 is an electric current conducting rod 5 composed of copper or other suitable material having one end thereof fastened to one terminal of the coil. 2, as at 6. Enveloping the core 2 and the coil of wire thereon is a cementitious substance while inclosing the plastic composition is a metal tubular eas- Speciflcation of Letters Patent.

Patented Jan. 12, 1915.

Serial No. 791,599.

ing 8 having the opposite ends thereof closed by means of caps 9, 9. Passed through an opening formed in the cap 9 opposite that inclosing the connection between the wire coil and the copper rod and embedded in the cementitious composition 7 is a porcelain plug 10 formed longitudinally with parallel bores 11, 11 receiving pins 12, 12 projecting outwardly from the adjacent end of the core 1 and designed to maintain the plug 10 against movement relatively to the core. Also formed in the plug are longitudinal passages 13, 13 through which are passed the terminals of the electric current carrying conductors 14, the terminal of one of such conductors being fastened onto the adjacent end of the rod 5 while the terminal of the remaining conductor is tapped onto the free end of the wire coil 3.

In practice, the heater A is associated with the sheet delivery mechanism of the printing press and designed to heat the paper subsequent to the printing operation in order that the static electricity in the paper will be eliminated and offsetting of the printing paper prevented.

From the foregoing description taken in connection with the accompanying drawings, the construction, mode of operation and manner of employing my invention will be readily apparent. It will be seen that I have provided a heater which will effectively dissipate and eliminate the static electricitydn the paper and prevent ofi'setting of the printed sheets, while the press may be operated at a comparatively high speed and relatively cheap printing inks employed for inking.

While I have herein shown and described one preferred form of my invention by way of illustration, I desire to have it understood that I do not limit or confine myself to the precise details of construction herein described and delineated, as modification and variation may be madewithin the scope of the claims without departing from the spirit of the invention.

I claim:

A heater of the class described comprising a core having a longitudinal bore formed therein, a conducting rod within said bore, a wire coiled about said core, a tube inclosing said wire, means interposed between said tube and wire to insulate the wire from the tube, caps closing the ends of said tube, a connection between one end of said rod and wire at one extremity of the' through said passages and connected with 10 core, a plug passed through the cap and emthe remaining terminal of said wire coil and bedded in the insulating material at the opthe adjacent end of said rod respectively. posite end of the core pins carried by the In testimony whereof I aflix my signature 5 last-mentioned end 0 the core and proin presence of two witnesses.

jecting through said plug to hold the latter "ff OSCAR B. BRUSH. against movement relatlvely to the core, Witnesses: said plug being formed with passages, and WM. A. Knox,

electrlc current carrying conductors passed GEO. H. LEWIS. 

